This Brief provides an overview of how students' insights on the usefulness and feasibility of various accessibility features and accommodations should be taken into account when identifying accessibility features and accommodations for instruction and assessment. Students are often the best source of information about their strengths and needs, and what helps. This Brief uses synthesized and summarized research NCEO conducted on the perceptions of students with disabilities regarding accommodations between 1999 and 2021, and provides suggestions for soliciting students' perceptions on accommodations and involving them in advocating for their needs.